On screen
Cast
11 credited performers
Richard Chamberlain
Narrator
Vera Rubin
Self
Artwork unavailable
Tony Tyson
Self
Artwork unavailable
Jesse Greenstein
Self
Artwork unavailable
Tiziana Venturi
Self
Artwork unavailable
John Dobson
Self
Artwork unavailable
Leonid Grishchuk
Self
Kip Thorne
Self
Stephen Hawking
Self
Hans Bethe
Self
Artwork unavailable
Hans Albrecht
Self